| Application of Advanced Laser Diagnostics to High Impact Technologies. Delivery Order 0001: Laser Diagnostics Applications |
FEB 2011 |
1529 pages |
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
 | The technical effort for this program was divided into six major tasks, covering advanced diagnostic techniques, modeling and simulations, fundamental combustion research, high-impact-technology component studies, advanced-propulsion-system concept studies, and advanced-concept high-impact-technology demonstrations. The objectives of this ambitious program were to: Develop and apply advanced diagnostic techniques to the investigation of advanced-concept technologies for future-generation propulsion systems. Develop and apply advanced computational-fluid-dynamics (CFD)-based simulations and models to the investigation of advanced-concept ... |
|
| Growth of High-Quality Carbon Nanotudes on Free-Standing Diamond Substrates (Postprint) |
Mar 2010 |
7 pages |
| Authors:
C Varanasi; J Burke; L Brunke; W Lanter; H Wang; J Petry; B T Yang; J S Bulmer; J Scofield; P N Barnes; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Carbon nanotubes (CJTs) were grown on diamond-coated Si substrates and free-standing diamond wafers to develop efficient thermal interface materials for thermal management applications. High-quality, translucent, free-standing diamond substrates were processed in a 5 kW microwave plasma chemical vapor deposition (CVD) system using CH4 as precursor. Ji and Ni-9%W-l.5% Fe catalyst islands were deposited to nucleate CNTs directly onto the diamond substrates. Randomly-oriented multi-walled CNTs forming a mat of 5 1m ... |
|
| Experimental Study of Cavity-Strut Combustion in Supersonic Flow (Postprint) |
JUL 2007 |
16 pages |
| Authors:
K. -Y. Hsu; Campbell D. Carter; M. R. Gruber; T. Barhorst; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| An experimental investigation of cavity-based flameholders with strut injectors in a supersonic flow is reported. In this ongoing research program, emphases are placed on understanding cavity-based flameholders and providing alternative methods for improving overall combustor performance in scramjet engines. Three different struts with fuel injectors are mounted near the cavity leading edge to study flame propagation and ignition of fuel in the core flow region. OH-PLIF is used to identify ... |
|
| Research on Nitride Thin Films, Advanced Plasma Diagnostics, and Charged-Particle Processes |
JUL 2006 |
130 pages |
| Authors:
William C. Lanter; Wei Guo; Charles Q. Jiao; David C. Ingram; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| This program has three sub-tasks: 1) Nitride Thin-Film Coatings, 2) Advanced Plasma Diagnostics, and 3) Studies of Charged-Particle Processes. The focus of Task 1 has been to develop amorphous carbon-nitride films utilizing controlled plasma-generated ions to increase the nitrogen concentration within the film. It is anticipated that development of films with higher concentrations of nitrogen will lead to properties similar to those theoretically calculated for crystalline β-C3N4. Successful development of ... |
|
| Partial Discharge Detection for Evaluation of Insulation Integrity in Aerospace Electric Power System Wiring and Components (Postprint) |
MAY 2006 |
7 pages |
| Authors:
D. L. Schweickart; D. F. Grosjean; X. Liu; D. G. Kasten; S. A. Sebo; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| This report was developed under a SBIR contract. The paper describes the importance of partial discharge (PD) detection for aerospace electric power system wiring and components in low pressure environment. The relationships between recorded discharge pulse current waveforms and PD electrical characteristics are explained and discussed. Features of a new PD analyzer for low pressure applications are reviewed. |
|
| MHD Flow Control and Power Generation in Low-Temperature Supersonic Flows |
30 APR 2006 |
32 pages |
| Authors:
Sivaram P. Gogineni; Igor V. Adamovich; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Report developed under STTR contract for topic AFO5-T016. Results of cold MHD flow deceleration and MHD power-generation experiments conducted at The Ohio State University are presented. MHD effect on the flow is detected from flow static-pressure measurements. The observed static-pressure change is due to the MHD interaction and not Joule heating of the flow in the crossed discharge. Comparison of experimental results with modeling calculations shows that the retarding Lorentz ... |
|
| Optical Pressure and Temperature Mapping |
AUG 2005 |
28 pages |
| Authors:
Jimmy W. Crafton; Larry P. Goss; E. G. Jones; Sergey D. Fonov; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Experimental validation of turbine performance is a challenging task because the high temperatures, scale of the hardware, and gas composition make taking data in a real turbine virtuously impossible. Facilities such as the Air Force Turbine Research Facility (TRF) enable acquisition of data through simulation of the turbine environment. This blow-down facility for testing full-scale turbine hardware allows control of the gas temperature and composition and matches the Reynolds number, ... |
|
| Multi-Aspect Solutions for Moving Vehicle Testing |
01 APR 2005 |
33 pages |
| Authors:
S. Fonov; J. Crafton; L. Goss; G. Jones; V. Fonov; C. Tyler; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| This paper reviews an integrated testing approach for investigating the effects of fluid dynamic phenomena on the performance of moving vehicles and their models. This approach is based upon the combination of advanced optical diagnostic techniques with computational fluid dynamic models to provide a comprehensive understanding of a vehicle's aerodynamic and hydrodynamic performance. Advanced optical diagnostic techniques that will be discussed include: pressure sensitive paint (PSP - surface flow visualization, ... |
|
| Applications of Laser Diagnostics |
MAR 2005 |
708 pages |
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| This report describes the results of experimental and numerical investigations on gas-turbine combustion and fuel processes. The purpose of this program is the advancement of the state-of-the-art in laser diagnostics, modeling and simulations, propulsion sciences, advanced propulsion concepts, current and next-generation gas-turbine-engine components, and high-impact revolutionary technologies for airbreathing propulsion systems. The objectives of this research program include: Development, evaluation, and utilization of state-of-the-art-laser diagnostic techniques and analytical simulations and ... |
|
| Filtered Rayleigh Scattering Velocimetry for Wind Tunnel Applications |
APR 2004 |
188 pages |
| Authors:
Jim Crafton; Greg Elliott; Campbell Carter; Tom Beutner; Henry Baust; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Molecular/atomic filter techniques offer the potential of making quantitative and multi-component two-dimensional velocity measurements. Furthermore, they appear well suited to applications in large scale facilities. As such, considerable interest in these techniques has been generated during the past several years. The goals of the current research program were to develop and demonstrate a molecular filtered based velocimetry system (including the hardware and software). The system demonstration was to be carried ... |
|
| Ionization Rates and Charge Production in Hydrocarbon Fuels |
20 OCT 2003 |
9 pages |
| Authors:
C. Q. Jiao; C. A. DeJoseph Jr; A. Garscadden; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| In fuel air mixtures the electron energy distribution function (EEDF) is dominated by the effects of the nitrogen momentum transfer and inelastic collisions. However the ionization potential of the hydrocarbons, n-octane and n-decane, are about 11.7 eV and 10.2 eV respectively whereas the nitrogen ionization potential is 15.5eV. Therefore the total ionization rate at higher fuel ratios can be dominated by ionization of the fuel. On the other hand in ... |
|
| Advanced Laser Diagnostics of Compressible Flows |
FEB 2003 |
38 pages |
| Authors:
Kuang-Yu Hsu; Tarun Mathur; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Advanced laser diagnostics have been developed to study the fundamentals of supersonic flows for scramjet applications. Filtered Rayleigh scattering and planar laser-induced fluorescence (PLIF) techniques were developed and applied for measuring temperature and species in reacting and nonreacting flows. Fundamental studies of a cavity flame-holder in reacting and nonreacting supersonic flows were conducted. Several cavity-configuration and fueling schemes were employed, and combustion performance was documented. Raman scattering was utilized to ... |
|
| The Application of Advanced Diagnostics to the Study of Non-Equilibrium Air Plasmas |
SEP 2002 |
60 pages |
| Authors:
James M. Williamson; Peter Bletzinger; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Low-Mach-number shock waves propagating through a low-pressure, non- equilibrium, positive-column gas discharge have been observed to experience dispersion and velocity changes. These effects are shown to depend on discharge polarity. Optical and electrical measurements are described which demonstrate further polarity-dependent effects in discharge light emission and changes in electrical properties. The axial-population-density profile of 2 3S1 metastable He has also been measured by diode-laser absorption spectroscopy in the double layer ... |
|
| Advanced Laser Diagnostic Applications. Volume 1 of 3 (Pages 1 - 217) |
MAR 2001 |
224 pages |
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Reported are results of experimental and numerical investigations on gas turbine combustion and fuel processes, including: 1) Development, evaluation, and utilization of advanced laser diagnostic and analytical techniques for studying combustion and fuel processes important to current and future military aircraft; 2) Determination of cause and investigation of schemes to eliminate combustion and thermal-stability-related problems resulting from change from JP-4 to JP-8 fuel; 3) Proposal and evaluation of advanced combustor ... |
|
| Advanced Laser Diagnostic Applications, Volume 1 |
MAR 2001 |
|
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
 | Reported are results of experimental and numerical investigations on gas turbine combustion and fuel processes, including: 1) Development, evaluation, and utilization of advanced laser diagnostic and analytical techniques for studying combustion and fuel processes important to current and future military aircraft; 2) Determination of cause and investigation of schemes to eliminate combustion and thermal-stability-related problems resulting from change from JP-4 to JP-8 fuel; 3) Proposal and evaluation of advanced combustor ... |
|
| Advanced Laser Diagnostic Applications, Volume 2 |
MAR 2001 |
481 pages |
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Reported are results of experimental and numerical investigations on gas turbine combustion and fuel processes, including: 1) Development, evaluation and utilization of advanced laser diagnostic and analytical techniques for studying combustion and fuel processes important to current and future military aircraft; 2) Determination of cause and investigation of schemes to eliminate combustion and thermal-stability-related problems resulting from change from JP- 4 to JP-8 fuel; 3) Proposal and evaluation of advanced ... |
|
| Advanced Laser Diagnostic Applications, Volume 3 |
MAR 2001 |
545 pages |
| Authors:
Larry P. Goss; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| Reported are results of experimental and numerical investigations on gas turbine combustion and fuel processes, including: 1) Development, evaluation, and utilization of advanced laser diagnostic and analytical techniques for steadying combustion and fuel processes important to current and future military aircraft; 2) Determination of cause and investigation of schemes to eliminate combustion and thermal-stability-related problems resulting from change from JP-4 to JP-8 fuel; 3) Proposal and evaluation of advanced combustor ... |
|
| Detonation Initiation Studies and Performance Results for Pulsed Detonation Engine Applications |
JAN 2001 |
11 pages |
| Authors:
Fred Schauer; Jeff Stutrud; Royce Bradley; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| An in-house computational and experimental program to investigate and develop an air breathing pulse detonation engine (PDE) that uses a practical fuel (kerosene based, fleet-wide use, JP type) is currently underway at the Combustion Sciences Branch of the Turbine Engine Division of the Air Force Research Laboratory (AFRL/PRTS). PDE's have the potential of high thrust, low weight, low cost, high scalability, and wide operating range, but several technological hurdles must ... |
|
| Pressure-Sensitive-Paint Measurements in a Commercial Jet-Engine Test Stand |
SEP 1999 |
12 pages |
| Authors:
Jeffrey D. Jordan; A. N. Watkins; John C. Davis; William L. Weaver; INNOVATIVE SCIENTIFIC SOLUTIONS INC DAYTON OH
|
| This paper presents the application of pressure-sensitive paint (PSP) measurement technology to a large-scale commercial turbine-engine test stand. In this work, the test article is the engine-inlet bell mouth. A sol-gel-based PSP is applied to the inlet and illuminated using the blue (460-nm) output of eleven LED arrays. PSP data are acquired using a scientific-grade CCD camera. The application of PSP measurements in the engine-test-stand environment requires test instrumentation to ... |
|
Reports by Corporate Author
